Conservatives have long ridiculed those on the left as brain-dead, bleeding-heart know nothings who emote profusely while sitting around camp fires singing “Kumbaya.”

I used to think it was a stereotype. I was wrong — kind of.

The evidence surfaced during a panel discussion on organizing at the left-wing Take Back the American Dream conference in Washington, D.C., on October 4, 2011.

Heather Booth, a neo-communist, Saul Alinsky-inspired, community organizer led her fellow Marxists in a stirring recitation of the old labor movement song “Solidarity Forever.” (Booth founded the Midwest Academy, a training institute for Alinskyite agitators.)

It really needs to be heard to be believed:

Matthew Vadum is an award-winning investigative reporter and the author of "Subversion Inc.: How Obama’s ACORN Red Shirts Are Still Terrorizing and Ripping Off American Taxpayers" (WND Books, 2011) and "Government Unions: How They Rob the Taxpayer, Terrorize Workers, and Threaten our Democracy" (David Horowitz Freedom Center, 2012). His next major work will have a shorter title.